Magick::Pixels Class Reference

Public Member Functions
	Pixels (Magick::Image &image_)
Quantum *	get (const ::ssize_t x_, const ::ssize_t y_, const size_t columns_, const size_t rows_)
const Quantum *	getConst (const ::ssize_t x_, const ::ssize_t y_, const size_t columns_, const size_t rows_)
void *	metacontent (void)
ssize_t	offset (PixelChannel channel) const
Quantum *	set (const ::ssize_t x_, const ::ssize_t y_, const size_t columns_, const size_t rows_)
void	sync (void)
::ssize_t	x (void) const
::ssize_t	y (void) const
size_t	columns (void) const
size_t	rows (void) const

Private Member Functions
	Pixels (const Pixels &pixels_)
const Pixels &	operator= (const Pixels &pixels_)

Private Attributes
Magick::Image	_image
MagickCore::CacheView *	_view
::ssize_t	_x
::ssize_t	_y
size_t	_columns
size_t	_rows

Detailed Description

Definition at line 20 of file Pixels.h.

Constructor & Destructor Documentation

Pixels()

Magick::Pixels::Pixels

(

Magick::Image &

image_

)

Definition at line 21 of file Pixels.cpp.

  : _image(image_),
    _x(0),
    _y(0),
    _columns(0),
    _rows(0)
{
  GetPPException;
    _view=AcquireVirtualCacheView(image_.image(),exceptionInfo),
  ThrowPPException(image_.quiet());
}

~Pixels()

Magick::Pixels::~Pixels

(

void

)

Definition at line 33 of file Pixels.cpp.

{
  if (_view)
    _view=DestroyCacheView(_view);
}

Member Function Documentation

columns()

size_t Magick::Pixels::columns ( void ) const

inline

Definition at line 143 of file Pixels.h.

{
  return _columns;
}

get()

Magick::Quantum * Magick::Pixels::get	(	const ::ssize_t	x_,
		const ::ssize_t	y_,
		const size_t	columns_,
		const size_t	rows_ )

Definition at line 39 of file Pixels.cpp.

{
  _x=x_;
  _y=y_;
  _columns=columns_;
  _rows=rows_;
 
  GetPPException;
  Quantum* pixels=GetCacheViewAuthenticPixels(_view,x_,y_,columns_,rows_,
    exceptionInfo);
  ThrowPPException(_image.quiet());
 
  return pixels;
}

getConst()

const Magick::Quantum * Magick::Pixels::getConst	(	const ::ssize_t	x_,
		const ::ssize_t	y_,
		const size_t	columns_,
		const size_t	rows_ )

Definition at line 55 of file Pixels.cpp.

{
  _x=x_;
  _y=y_;
  _columns=columns_;
  _rows=rows_;
 
  GetPPException;
  const Quantum* pixels=GetCacheViewVirtualPixels(_view,x_,y_,columns_,rows_,
    exceptionInfo);
  ThrowPPException(_image.quiet());
 
  return pixels;
}

metacontent()

void * Magick::Pixels::metacontent

(

void

)

Definition at line 102 of file Pixels.cpp.

{
  void* pixel_metacontent=GetCacheViewAuthenticMetacontent(_view);
 
  return pixel_metacontent;
}

offset()

ssize_t Magick::Pixels::offset

(

PixelChannel

channel

)

const

Definition at line 71 of file Pixels.cpp.

{
  if (_image.constImage()->channel_map[channel].traits == UndefinedPixelTrait)
    return -1;
  return _image.constImage()->channel_map[channel].offset;
}

rows()

size_t Magick::Pixels::rows ( void ) const

inline

Definition at line 149 of file Pixels.h.

{
  return _rows;
}

set()

Magick::Quantum * Magick::Pixels::set	(	const ::ssize_t	x_,
		const ::ssize_t	y_,
		const size_t	columns_,
		const size_t	rows_ )

Definition at line 78 of file Pixels.cpp.

{
  _x=x_;
  _y=y_;
  _columns=columns_;
  _rows=rows_;
 
  GetPPException;
  Quantum* pixels=QueueCacheViewAuthenticPixels(_view,x_,y_,columns_,rows_,
    exceptionInfo);
  ThrowPPException(_image.quiet());
 
  return pixels;
}

sync()

void Magick::Pixels::sync

(

void

)

Definition at line 94 of file Pixels.cpp.

{
  GetPPException;
  (void) SyncCacheViewAuthenticPixels(_view,exceptionInfo);
  ThrowPPException(_image.quiet());
}

x()

ssize_t Magick::Pixels::x ( void ) const

inline

Definition at line 131 of file Pixels.h.

{
  return _x;
}

y()

ssize_t Magick::Pixels::y ( void ) const

inline

Definition at line 137 of file Pixels.h.

{
  return _y;
}

Field Documentation

_columns

size_t Magick::Pixels::_columns

private

Definition at line 78 of file Pixels.h.

_image

Magick::Image Magick::Pixels::_image

private

Definition at line 74 of file Pixels.h.

_rows

size_t Magick::Pixels::_rows

private

Definition at line 79 of file Pixels.h.

_view

MagickCore::CacheView* Magick::Pixels::_view

private

Definition at line 75 of file Pixels.h.

_x

::ssize_t Magick::Pixels::_x

private

Definition at line 76 of file Pixels.h.

_y

::ssize_t Magick::Pixels::_y

private

Definition at line 77 of file Pixels.h.

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The documentation for this class was generated from the following files:

• /builddir/build/BUILD/ImageMagick-7.1.2.29-build/ImageMagick-7.1.2-29/Magick++/lib/Magick++/Pixels.h
• /builddir/build/BUILD/ImageMagick-7.1.2.29-build/ImageMagick-7.1.2-29/Magick++/lib/Pixels.cpp